<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    <h1>{{info}}</h1>
</div>
<!--引入本地vue.js文件-->
<script src="js/vue.js"></script>
<script>
    let v = new Vue({
        el: "#app", /*告诉Vue对象管理的区域*/
        data: {
            info: "Hello Vue!"
        }
    })
    setTimeout(function () {
        v.info = "值改变了!";
    },3000);

</script>
</body>
</html>